package com.watson.datastructure;

import javax.naming.ldap.HasControls;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @program: mytest
 * @description:
 * @author: zhangpeng348@jd.com
 * @date: 2019-07-05 17:04
 **/
public class MapTest {


    public static void main(String[] args) {
        HashMap hashMap = new HashMap();
        Map currentMap = new ConcurrentHashMap();
        AtomicInteger atomicInteger = new AtomicInteger();
        atomicInteger.getAndIncrement();
    }
}
